# coding=utf-8
# Copyright 2024 The Google Research Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""Building the dataset iterators for offline RL."""

import collections
import os


Inputs = collections.namedtuple('inputs', ['data'])


def create_data_iter(
    task_class,
    task_name,
    batch_size):
  if task_class == 'd4rl':
    from jrl.data import d4rl
    return d4rl.create_d4rl_data_iter(task_name, batch_size)
  else:
    raise NotImplementedError('task_class not handled!')
